Fault recovery mechanism in single-hop sensor networks

Authors:
S. Chessa;P. Maestrini
Affiliations:
Dipartimento di Informatica, Universití di Pisa, via Buonarroti 2, Pisa, Italy;Istituto di Scienza e Tecnologie dell'Informazione-CNR, Area della Ricerca di Pisa, via Moruzzi 1, Pisa, Italy
Venue:
Computer Communications
Year:
2005

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Abstract

This paper introduces a memory efficient fault recovery scheme for single hop wireless sensor networks, where the network is able to operate independently of the sink node for long periods of time. The proposed scheme does neither require that the sensors be equipped with stable storage nor that they are permanently connected to the sink node. Rather, the sensors cooperate to maintain redundant information in their memories in order to be able to recover the lost information after a failure, and to distribute the recovered information among the memories of the surviving sensors.